The impacts of building opening characteristics on dust particle deposition indoors

IF 2.1 Q2 CONSTRUCTION & BUILDING TECHNOLOGY
M. Mohammed, K. Bulama, A. Bukar, M. A. Modu, A. Usman, AlhajiKasir. Lawan., Garba Abba Habib
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Abstract

PurposeThe effects of dust exposure in buildings and its health and comfort consequences continue to concern occupants, particularly those who spend most of their time indoors. This study examines the influence of building opening characteristics on surface dust loading in indoor environments to determine the dust particles' impact on different opening configurations.Design/methodology/approachIndoor Harmattan dust surface loading data were collected from Maiduguri, Northeastern Nigeria, using model rooms with six different window configurations. A simple mathematical relationship was employed to assess surface dust loading characteristics in the model rooms. The study measured dust thrice between December and February for three days (72 h). The results were analyzed using descriptive statistics.FindingsThe results determined the highest average surface dust loading of 12.03 g/m2 in the room with awning windows at an indoor-to-outdoor (I/O) ratio of 0.7. In contrast, the experiment in the room with a closed window recorded the lowest average surface dust loading of 5.24 g/m2 at an I/O ratio of 0.30, which is infiltration. The outcomes further indicate that the average surface dust loading varies with the building opening type and position, as higher surface dust loadings were recorded in locations closer to the openings (doors and windows), reaffirming that the dominant source of the dust particles is outdoors. According to the study, dust incursion due to infiltration accounts for 30% of the outdoor surface loading.Originality/valueThus, Harmattan dust is a serious challenge to the health, productivity and hygiene of building occupants in the study area. The built-environment professionals must use the study's outcome to optimize building openings' designs (shape, size and form) for effective indoor dust control.
建筑开口特性对室内尘粒沉降的影响
目的建筑物中灰尘暴露的影响及其对健康和舒适的影响继续困扰着居住者,尤其是那些大部分时间都呆在室内的人。本研究考察了建筑开口特性对室内环境中表面灰尘负荷的影响,以确定灰尘颗粒对不同开口配置的影响。设计/方法/方法从尼日利亚东北部的迈杜古里收集室内Harmattan灰尘表面负荷数据,使用具有六种不同窗户配置的模型室。采用一个简单的数学关系来评估模型室内的表面灰尘负载特性。这项研究在12月至2月间连续三天(72小时)对灰尘进行了三次测量。使用描述性统计对结果进行分析。结果确定,在室内外(I/O)比为0.7的情况下,带遮阳篷窗户的房间的平均表面灰尘负荷最高,为12.03 g/m2。相反,在窗户关闭的房间里进行的实验记录到,在I/O比为0.30的情况下,平均表面灰尘负荷最低,为5.24 g/m2,即渗透。结果进一步表明,平均表面灰尘负荷随建筑开口类型和位置而变化,因为在更靠近开口(门窗)的位置记录到更高的表面灰尘负荷,这重申了灰尘颗粒的主要来源是室外。根据该研究,由于渗透引起的灰尘侵入占室外表面负荷的30%。原创性/价值因此,Harmattan粉尘对研究区域内建筑使用者的健康、生产力和卫生构成了严重挑战。建筑环境专业人员必须利用研究结果来优化建筑开口的设计(形状、尺寸和形式),以有效控制室内灰尘。
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来源期刊
CiteScore
4.80
自引率
18.20%
发文量
76
期刊介绍: The International Journal of Building Pathology and Adaptation publishes findings on contemporary and original research towards sustaining, maintaining and managing existing buildings. The journal provides an interdisciplinary approach to the study of buildings, their performance and adaptation in order to develop appropriate technical and management solutions. This requires an holistic understanding of the complex interactions between the materials, components, occupants, design and environment, demanding the application and development of methodologies for diagnosis, prognosis and treatment in this multidisciplinary area. With rapid technological developments, a changing climate and more extreme weather, coupled with developing societal demands, the challenges to the professions responsible are complex and varied; solutions need to be rigorously researched and tested to navigate the dynamic context in which today''s buildings are to be sustained. Within this context, the scope and coverage of the journal incorporates the following indicative topics: • Behavioural and human responses • Building defects and prognosis • Building adaptation and retrofit • Building conservation and restoration • Building Information Modelling (BIM) • Building and planning regulations and legislation • Building technology • Conflict avoidance, management and disputes resolution • Digital information and communication technologies • Education and training • Environmental performance • Energy management • Health, safety and welfare issues • Healthy enclosures • Innovations and innovative technologies • Law and practice of dilapidation • Maintenance and refurbishment • Materials testing • Policy formulation and development • Project management • Resilience • Structural considerations • Surveying methodologies and techniques • Sustainability and climate change • Valuation and financial investment
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